A radiotherapy device

A technology for radiotherapy and adjustment devices, applied in radiotherapy, treatment, X-ray/γ-ray/particle irradiation therapy, etc.

Active Publication Date: 2022-06-03
NEW JOURNEY MEDICAL ACCELERATOR WUXI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the multi-leaf collimator in the prior art cannot achieve a large dose gradient of the beam outside the target area

Method used

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Embodiment Construction

[0047] The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the accompanying drawings only show some but not all of the parts related to the present invention.

[0048] Some orientation words are defined in the present invention. Unless otherwise specified, the orientation words used are such as "up", "down", "left", "right", "inner" and "outer". It is adopted for the convenience of understanding, and thus does not limit the protection scope of the present invention.

[0049] In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in dire...

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Abstract

The invention relates to the technical field of radiation therapy, and specifically discloses a radiation therapy device, which includes a beam generating mechanism, a shielding body and a multi-leaf grating. The beam generating mechanism rotates around a fixed axis and generates radiation during the rotation process. beam current; the shielding body includes a plurality of shielding strips arranged at intervals along the first direction, and two adjacent shielding strips form a grid for the ray beam to pass through; the multi-leaf grating includes multiple pairs along the first direction A pair of blades arranged in sequence in the direction, the pair of blades includes two blades arranged along the second direction, and the distance between the two blades of each pair of blades is adjustable, so as to form a gap for the ray beam to pass through. Slits; the grids correspond to the slits one by one, and the shielding strip can partially cover the slits in the first direction, and the first direction is perpendicular to the second direction. The radiotherapy device provided by the invention increases the dose gradient of the ray beam outside the target area.

Description

technical field [0001] The present invention relates to the technical field of radiotherapy, in particular to a radiotherapy device. Background technique [0002] IMRT (intensity-modulated radiation therapy, intensity modulated radiation therapy for short) is an advanced high-precision radiation therapy, which uses a computer-controlled radiation therapy device to emit precise radiation to the tumor and other target areas according to the 3D shape of the tumor. X-ray radiation dose, so as to achieve the purpose of treating tumors and other diseases. [0003] The radiotherapy device in the prior art includes a beam generating mechanism and a multi-leaf grating, the beam generating mechanism can generate an X-ray beam, and the multi-leaf grating includes a plurality of sets of blades arranged in pairs, and the two blades in each pair of blades can interact with each other. away or closer to create slits of different lengths. Multiple groups of blades are arranged in sequence...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21K1/02A61N5/10
CPCA61N5/1045
Inventor 陈亮蔡俊罗宇华
Owner NEW JOURNEY MEDICAL ACCELERATOR WUXI CO LTD
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